Heat and Mass Transfer Characteristics of an Active Carbon/Ammonia Adsorption Heat Pump with a Packed Bed Type Adsorber
Heat and Mass Transfer Characteristics of an Active Carbon/Ammonia Adsorption Heat Pump with a Packed Bed Type Adsorber
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带填充床式吸附器的活性炭/氨吸附热泵的传热传质特性
DOI：
10.1252/jcej.37.383
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发表时间：
2004
影响因子：
0.8
通讯作者：
M. Hasatani
中科院分区：
文献类型：
--
作者：
Jiangfang Li;Fujio Watanabe;M. Kubota;N. Kobayashi;M. Hasatani
在253 K以下的温度下，采用活性炭/氨AHP作为多层次AHP中的低温侧AHP，并采用填充床型吸附器。在假定的实际再生温度（343-363 K）和热沉温度（273-283 K）下，对该吸附器的传热传质特性进行了实验研究。然后，通过吸附器内吸附量和温度的实验数据，对填充床内的传热传质模型进行了评价。吸附量变化的结果表明，吸附过程中氨蒸气的吸附量可以完全脱附，证明了AHP法中吸附与脱附之间的可逆性。在加压（≥ 0.1MPa）条件下，活性炭/氨水AHP的吸附/脱附速率大于硅胶/水AHP。随后，冷热量输出的结果表明，即使填充床高度达到100 mm，吸附/解吸也可以在填充床的轴向方向上同等地进行。
An active carbon/ammonia AHP with a packed bed type adsorber was used as a low temperature side AHP in a multi AHP for producing cold heat energy at temperatures below 253 K. Its heat and mass transfer characteristics in the adsorber were experimentally investigated in the assumed practical regeneration temperatures (343–363 K) and heat sink temperatures (273–283 K). Then, the heat and mass transfer model in the packed bed was evaluated by the experimental data of adsorption amount and temperatures in the adsorber. The results from the changes of adsorption amount have shown that the amount of ammonia vapor adsorbed in the adsorption process can be completely desorbed, and the reversibility between adsorption and desorption in the AHP has been proven. As in the condition of pressurization (≥0.1 MPa), the adsorption/desorption rate of the active carbon/ammonia AHP is larger than that of the silica gel/water AHP. Subsequently, the results of cold heat output illustrated that the adsorption/desorption can be performed equally in the axial direction of the packed bed even if the packed bed height reaches as high as 100 mm.